diff --git a/python/paddle_fl/mpc/examples/uci_demo/prepare_data.py b/python/paddle_fl/mpc/examples/uci_demo/prepare_data.py
index df6f61caeb01eb28aaa74658b4d81297241467e2..2d327ce7726eb078b9c2bed06ba5d69ff35ef3b6 100644
--- a/python/paddle_fl/mpc/examples/uci_demo/prepare_data.py
+++ b/python/paddle_fl/mpc/examples/uci_demo/prepare_data.py
@@ -60,3 +60,6 @@ def load_decrypt_data(filepath, shape):
     for instance in aby3_share_reader():
         p = aby3.reconstruct(np.array(instance))
         print(p)
+
+
+generate_encrypted_data()